Maths
Evaluate the expression √−7/√ −6√−5 and write the result in the form a+bi.
I keep getting b as 0.483i but apparently its wrong?
asked by
Amelia

Well, you need to work on using parentheses
√−7/√−6√−5 means (√−7/√−6)(√−5)
= 7i/6i * 5i
= 35i^2/6i
= 35/6 i = 5.83i
√−7/(√−6√−5) = 7i/30 = 0.233i
0.483 = 29/60
Too bad you didn't bother to show your work, eh?
Or is there a typo in the problem?posted by Steve

Tried that answer as well but the website is till telling me its wrong. Could be a typo will have to check with the instructor.
posted by Amelia
Respond to this Question
Similar Questions

math
Evaluate the expression√(6)/(√(3) √(4)) and write the result in the form a+bi. Please help!!!!! :( 
Algebra
Use a calculator to evaluate the expression. Write the result in scientific notation and in decimal form. Did I do think correctly? 6000000 * 324,000 =1.944*10^12 =1944000000000 
Chemistry
I'm doing chemical equilibrium, and there's a question in my lecture notes. Can someone check my answers and tell me if i'm right or wrong? Thanks! The Kc expression for this reversible reaction: 3Fe(s) + 4H2O (g) >< 
math
is zero a multiple of every number? Find the prime factorization of the number, and write it in exponent form. 198 Compute the value of the given expression. _8_ 118 Evaluate the expression. 8x + 8y, for x = 8 and y = 1 
Algebra
Use symbols to write the expression and then evaluate it Thirty six squared divided by six cubed The given expression symbol is? Evaluate it 
Math
Evaluate the expression for t • 1/8 for the given value of t. Write the answer in the simplest form. t = 4/9 
ml
Evaluate the expression 25/23 and write your answer as a fraction in simplest form. 
CHEMISTRY
Write formulas for the compounds that form from Sr and each of the following polyatomic ion: NO−3, SO2−4, PO3−4. APPARENTLY SrNO6, SrSO4 , Sr3PO8 is wrong 
CHEMISTRY
Write formulas for the compounds that form from Sr and each of the following polyatomic ion: NO−3, SO2−4, PO3−4. APPARENTLY SrNO6, SrSO4 , Sr3PO8 is wrong 
Calculus
Evaluate the following expression: d/dx (integration sign: upper=1 and lower= 3) (2t^3 + 3)dt = I am given the following options: 2t^3 + 3 56 5 28.0 None of the above Would the result of the expression be 0 or 5???